EP 0611985 B1 20011205 - Process for producing a silver halide photographic emulsion
Title (en)
Process for producing a silver halide photographic emulsion
Title (de)
Verfahren zur Herstellung einer photographischen Silberhalogenidemulsion
Title (fr)
Procédé pour la préparation d'une émulsion photographique à l'halogénure d'argent
Publication
Application
Priority
JP 4442893 A 19930210
Abstract (en)
[origin: EP0611985A1] A silver halide photographic light-sensitive emulsion is disclosed. The emulsion comprises silver halide grains formed under a condition in which fine grains of silver halide are supplied into the protective colloid solution, in which the silver halide grains are formed, in a period in the course of formation of the grains, and the sum of projection area of tabular grains each having a aspect ratio larger than 1.2 accounts for lower than 50 % of the total projection area of the whole silver halide grains of the emulsion, and the tabular grains have an average aspect ratio is more than 1.2 and less than 5.0 and an average grain size of not larger than 0.6 mu m.
IPC 1-7
IPC 8 full level
G03C 1/015 (2006.01); G03C 1/005 (2006.01); G03C 1/035 (2006.01); G03C 1/06 (2006.01); G03C 1/07 (2006.01); G03C 5/02 (2006.01)
CPC (source: EP US)
G03C 1/0051 (2013.01 - EP US); G03C 5/02 (2013.01 - EP US); G03C 2001/0055 (2013.01 - EP US)
Designated contracting state (EPC)
GB
DOCDB simple family (publication)
EP 0611985 A1 19940824; EP 0611985 B1 20011205; JP 3278005 B2 20020430; JP H06235989 A 19940823; US 5380640 A 19950110
DOCDB simple family (application)
EP 94101084 A 19940125; JP 4442893 A 19930210; US 18547094 A 19940124